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Alfalfa Field (390ft) - March 23rd, 2018

This survey was of an alfalfa field. The field is watered by flat flood method draining from left (west) to right (east). You will notice the red area to the east which is caused by a shallower elevation and the water pools there, reducing plant growth. The DJI Phantom 4 carried both cameras during the flight using our Phantom 4 Dual Camera Mount, and covered the 84 acre survey in one battery. A photo of our Calibration Ground Target was captured just before each flight and the software used to calibrate and stitch into an orthomosaic was our MAPIR Cloud.

This flight follows our recommended survey overlap of at least 70% front-lap and 70% side-lap and a maximum 5mph (8kmh) speed for every 65ft (20m) of altitude (AGL) for RAW+JPG mode, and a maximum 10mph (16kmh) speed for every 65ft (20m) of altitude (AGL) for JPG only mode.

 

Vehicle DJI Phantom 4
Mount DJI Phantom 4 MAPIR Survey 3/2/1 Dual Camera Mount
Height AGL 390ft (119m)
GSD (Average) 2.1in/px (5.4cm/px)
Speed 22mph (10m/s, 36kmh)
Surveyed Area 84 acres
Mapping Application Drone Deploy
Front Overlap (App Setting) 70%
Side Overlap (App Setting) 70%
Max Flight Speed (App Setting) 10m/s
Battery Used Per Flight 80%
Download Original Survey3W RGN Images CLICK HERE (1.58GB)
Download Original Survey3W NGB Images CLICK HERE (1.59GB)

 

 

 

 

Example composite with tile drain plans (drag GREEN vertical line at right):